Reach of Estoppel More of a Concern After AIA
The application of statutory estoppel to patent challengers was a concept first introduced in 1999 with the advent of inter partes patent reexamination (IPX). Initially, many sensationalized the estoppel effect of IPX together with the unpredictability of the reexamination process as justification to avoid use of the new proceeding. Over the years, due to the consistent performance of the USPTO’s Central Reexamination Unit (CRU), and perhaps to a greater extent, the 5-7 year duration of a fully contested IPX, patent challengers realized the estoppel risk to be an insignificant factor for most patent disputes (since most conclude before estoppel can attach). For this reason, the estoppel mechanics as to real-parties-in-interest and privies were infrequently considered by the courts, or USPTO.
Going forward, estoppel may once again become a concern for patent challengers under the new proceedings of the America Invents Act (AIA).
Inter Partes Review (IPR), Post Grant Review (PGR), and the Transitional Program for Covered Business Method Patents (TPCBMP), all have their own estoppel provisions. In view of the fact that all of these proceedings are designed to end within 12 months, estoppel is now a more clear and present danger. As such, it is now more important than ever for patent challengers to understand the meaning of “real party-in-interest” and “privies.”
Continue Reading Real-Party-in-Interest & Privies Before the USPTO
